@inproceedings {Janßen1673_2016, year = {2016}, author = {Janßen, Niclas A. and Oetjen, Arne and Weber, Reinhard and van de Par, Steven}, title = {Temporal Build-Up of Psychoacoustic Roughness}, booktitle = {Proc. German Annual Conf. Acoust. (DAGA)}, URL = {http://www.daga2016.de/fileadmin/uploads/2016.daga-tagung.de/Programm/DAGA16_Programm_online.pdf}, abstract = {Psychoacoustic roughness, which can occur for example in sounds of rotating machinery and speech, can have influence on different sound quality aspects such as the perceived pleasantness. Therefore, roughness has relevance in the context of product sound design, e.g. for vehicle interior sounds. Roughness arises from amplitude modulations within the frequency range of about 15 to 150 Hz. Due to variations of such modulations over time, roughness can vary over time, for example when a car is accelerating. So far, roughness perception has rarely been studied with a focus on such temporal changes. One may question whether there exists a temporal build-up for the strength of perceived subjective roughness. In the present study, a roughness matching experiment for stimuli containing amplitude modulated parts with different lengths was conducted. It was found that the amount of perceived overall roughness seems to increase with increasing duration of the rough portion inside a sound with fixed overall length. From this, a general trend for changes in roughness perceptionwith such time-changes has been found and a model describing these changes will be presented.} }